From: Christoph Lameter <cl@linux.com>
To: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Andrew Morton <akpm@google.com>, Dave Jones <davej@redhat.com>,
Mel Gorman <mgorman@suse.de>,
stable@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Subject: Re: [PATCH 1/6] Revert "mm: mempolicy: Let vma_merge and vma_split handle vma->vm_policy linkages"
Date: Mon, 11 Jun 2012 09:43:38 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1206110935070.31180@router.home> (raw)
In-Reply-To: <1339406250-10169-2-git-send-email-kosaki.motohiro@gmail.com>
On Mon, 11 Jun 2012, kosaki.motohiro@gmail.com wrote:
> From: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
>
> commit 05f144a0d5 "mm: mempolicy: Let vma_merge and vma_split handle
> vma->vm_policy linkages" removed a vma->vm_policy updates. But it is
> a primary purpose of mbind_range(). Now, mbind(2) is no-op in several
> case unintentionally. It is not ideal fix. This patch reverts it.
Rewritten changelog:
commit 05f144a0d5 "mm: mempolicy: Let vma_merge and vma_split handle
vma->vm_policy linkages" removed policy_vma() but the function is
needed in this patchset.
(It is not clear to me what the last sentences mean. AFAICT the code for
policy_vma() still exists in another function prior to this patch)
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next prev parent reply other threads:[~2012-06-11 14:43 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-11 9:17 [PATCH 0/6][resend] mempolicy memory corruption fixlet kosaki.motohiro
2012-06-11 9:17 ` [PATCH 1/6] Revert "mm: mempolicy: Let vma_merge and vma_split handle vma->vm_policy linkages" kosaki.motohiro
2012-06-11 14:43 ` Christoph Lameter [this message]
2012-06-11 9:17 ` [PATCH 2/6] mempolicy: remove all mempolicy sharing kosaki.motohiro
2012-06-11 15:02 ` Christoph Lameter
2012-06-12 16:46 ` KOSAKI Motohiro
2012-06-12 13:55 ` Mel Gorman
2012-06-12 16:45 ` KOSAKI Motohiro
2012-06-11 9:17 ` [PATCH 3/6] mempolicy: fix a race in shared_policy_replace() kosaki.motohiro
2012-06-11 9:17 ` [PATCH 4/6] mempolicy: fix refcount leak in mpol_set_shared_policy() kosaki.motohiro
2012-06-11 9:17 ` [PATCH 5/6] mempolicy: fix a memory corruption by refcount imbalance in alloc_pages_vma() kosaki.motohiro
2012-06-11 13:33 ` Ben Hutchings
2012-06-11 15:24 ` KOSAKI Motohiro
2012-06-12 14:20 ` Mel Gorman
2012-06-12 16:31 ` KOSAKI Motohiro
2012-06-11 9:17 ` [PATCH 6/6] MAINTAINERS: Added MEMPOLICY entry kosaki.motohiro
2012-06-11 15:01 ` [PATCH 0/6][resend] mempolicy memory corruption fixlet Christoph Lameter
2012-07-31 12:33 ` Josh Boyer
2012-08-06 19:32 ` KOSAKI Motohiro
2012-08-15 11:40 ` Josh Boyer
2012-08-15 20:20 ` Andrew Morton
-- strict thread matches above, loose matches on Subject: below --
2012-05-30 9:02 [PATCH 0/6] " kosaki.motohiro
2012-05-30 9:02 ` [PATCH 1/6] Revert "mm: mempolicy: Let vma_merge and vma_split handle vma->vm_policy linkages" kosaki.motohiro
2012-05-30 19:17 ` Christoph Lameter
2012-05-30 19:39 ` KOSAKI Motohiro
2012-05-30 19:44 ` Christoph Lameter
2012-05-31 6:49 ` KOSAKI Motohiro
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